THE DEVELOPMENT OF PROBLEM-BASED STUDENT WORKSHEETS TO IMPROVE LEARNING OUTCOMES OF NATURE SCIENCE LESSON WITH REFERENCE TO POWER AND SIMPLE AIRCRAFT ON CLASS V STUDENTS SDN 091571 BAH JAMBI

The objective of this research is to develop appropriate, valid and effective problem-based Student Sheet. This research is development research with model of Dick and Carey. The subjects in this study are students of fifth grade at SDN 091571 Bah Jambi . The object in this study is the Student Worksheet based on the problem. The instruments used are consisted of validation sheets, test result, learning result test, student response questionnaire and teacher response questionnaire. Data analysis is descriptive analysis. The results of the study indicate that: (1) validation of material experts, linguists, and presentation experts state that the developed student worksheet is suitable for use in the field without revision and it is very valid; and (2) based on field trials, student worksheet can be declared effective. It is based on: (i) the percentage of classical completeness increases by 86.67%, of the 30 students who take the test; (ii) the achievement of learning objectives is achieved; (iii) positive student response; and (iv) the percentage of effective learning time. The level of effectiveness of problem-based student worksheet in improving student learning outcomes based on gain score is moderate. Key words: student work sheet, project, learning outcome, power and simple aircraf